Grid made of electrically conducting sheet metal

Abstract

Suggested is a grid (22) of electrically conducting sheet material for connecting especially an electromotor, said grid being a deep-drawn part so that a high density and number of conductor paths (29) positioned side by side and one upon the other can be obtained, said conductor paths extending in different planes (24, 26, 28) and, if necessary, along curved paths.

I claim: 
     
       1. A grid (22, 30) made of electrically conducting sheet metal for the connection of especially an electromotor such as an electric tool or a sash lifter, with areas electrically separated from each other forming conductor paths, which can extend in different planes, characterized in that the grid (22, 30) is an at least single-stage, deep-drawn part enabling substantially unrestricted defining of the conductor paths. 
     
     
       2. A grid according to claim 1, characterized in that the grid (22, 30) is preferably formed like a cup or a pot or a semi-circular dish, and that the areas defining the conductor paths (24, 26, 28, 32, 34, 36, 38, 40, 42) are preferably cut free. 
     
     
       3. A grid according to claim 1, characterized in that the deep-drawn part forms a wall or walls, or their sections (28, 38, 40, 42), in respect to a base area (24, 32) of the grid (22, 30) describing an angle α of 70°≦α≦80°, preferably α=75°. 
     
     
       4. A grid according to claim 1, characterized in that the conductor paths after arranging the grid in a receptacle, in the form of a support (14), are defined by removed sheet material. 
     
     
       5. A grid according to claim 1, characterized in that conductor paths (29) are extending in a plane (28) at an angle to the grid (22), and are following, at least areawise, the course of one or several curves. 
     
     
       6. A grid according to claim 1, characterized in that the grid (22, 30) has, at least, one lug in the form of a step (26, 34, 36). 
     
     
       7. A grid according to claim 6, characterized in that the grid has several lugs (34, 36) in the form of a step, being arranged in the same planes or in planes parallel to each other. 
     
     
       8. A grid according to claim 7 characterized in that the grid has wall sections adjacent the step-shaped lugs, (26, 34, 36) and wherein the step-shaped lugs are electrically separated from the adjacent wall sections (28, 38, 40, 42) of the grid (22, 30). 
     
     
       9. A method for producing a grid of electrically conducting sheet material for the connection of especially an electromotor such as an electric tool or a sash lifter, with areas forming conductor paths electrically separated from each other, which can extend in different planes, characterized in that sections of the sheet material are successively, at least, single-stage deep drawn and subsequently are cut free areawise for obtaining the conductor paths, where the sections are connected via, at least, one marginal area of the sheet material forming a lateral strip. 
     
     
       10. A method according to claim 9, characterized in that the sections by means of two outside lateral strips are continuously connected, through which the transport during the processing operation for the fabrication of the almost finished grids takes place. 
     
     
       11. A method according to claim 10, characterized in that the lateral strip is provided with recesses, which will be engaged by a conveying element.